Leased-warp separator.



APPLICATION FILED MAY 27, 1911.

C. LEA.

LEASED WARP SEPARATOR.

Patented July 20, 1915.

4 SHEETS-SHEET l- CALUMBIA PLANOGRAPH co., WASHINGTON, n. c.

C. LEA.

LEASED WARP SEPARATOR.

APPLICATION FILED MAY 27, 1911.

Patented July 20, 1915 4 SHEETS-SHEET 2.

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C. LEA.

LEASED WARP SEPARATOR.

APPLICATION FILED MAY 27. 1911.

Patented July 20, 1915.

4 SHEETS-SHEET 3.

II r III III #5 vv. ll

h a w a swi C/bar zed'lea.

C. LEA.

LEASED WARP SEPARATOR.

' APPLICATION FILED MAY 27, 1911. 1,147,41 3, Patented July 20, 1915.

4 SHEETS-SHEET 4.

n eras Ara CHARLES LEA, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO AMERICAN WARP DRAW- ING MACHINE COMPANY, A CORPORATION OF MAINE.- I

LEASED-WARP SEPARA'IOR.

Specification of Letters Patent.

PatentedJuly 20,1915.

Application filed May 27, 1911. Serial N 0. 629,789.

To all whom it may 00mm:

Be itknown that I, CHARLES LEA, a cit zen of the United States, and a resident'of Boston, county of Suffolk, State of Massachusetts, whose post-office address is corner of Freeport andfBeach streets, Dorchester, Massachusetts, have invented an Improve-- ment in Leased-Warp Separators, of'which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to mechanisms for separating and selecting loom elements such as warp threads, heddles or the like, which are adapted to be arranged in leased'relation and presenting such elements for any suitable action such as seizure by a drawingin needle or other thread placing device, or by suitable uniting mechanism.

While the invention as to many of its features may have application to other elements than warp threads and to machines other than warp drawing machines, the same is herein" illustrated by embodiment 'in the thread-separating and selecting mechanism of a warp drawing machine adapted to separate and select successive threads from a suitably held warp and present them one by one to a drawing in needle by which they are each drawn through an appropriately positioned heddle eye and reed dent.

The invention will be best understood by reference to the following description when taken in connection with the accompanying illustration of one specific embodiment thereof, while its scope will be more particularly pointed out in the appended claims. W

In the drawings: Figure 1 is a rear elevation partly broken away showing a drawing-in machine embodying one form of the invention; Fig.1 is a detail showing the warp feeding devices; Fig. 2 is an end elevation in section on an enlarged scale showing the principal working parts of the drawing-in machine of Fig. 1; Fig. 3 is a rear elevation on an enlarged scale of the principal parts of the thread-selecting and thread-tensioning mechanisms;'Fig. 4 is an end elevation of the same parts including additionally the principal features of the warp holder orcarriage; Fig. 5 is a transverse sectional elevation showing the relation of the leased warp to the thread-selecting and thread-tensioning devices; Fig. 6 is a plan view of the thread-selecting and feeding, member; Fig. -7 is an elevation partly in section on an enlarged scale'showing the selecting shaft and the tensioning shaft; Fig. 8*is asectional elevation-showing'a detail' of the support for the two shafts; Fig. 9 is anenlarged elevation showing the relation of the threads to theselector; Fig. 10 is a section on the line 1010 inFig. 7; Fig. 11 is an enlarged elevation partly in sectionshowing the driving mech anism for the selector and tensioning shafts; and Fig; 12 is a section in elevation on the line 12.-12 in Fig. 11.

Referring to the drawings and to the embodiment of theinvention there shown, I have illustrated'the same as applied to a drawing-in machine 7 of the general type shown in prior Patents No. 7 55,861 to Field, No. 862,474 to Hathaway, No. 871,680 to Field, Hathaway and Lanning, No. 871,681 toField and Hathaway and No. 980,086 to Field, Lanning, Hathaway and Blanchard.

In this machine the bed or b'odyl is sustained upon the legs 2 and has the arched frame or superstructure 3 from which depend suitable devices for supporting the reedl and two or more harnesses 5. The latter in the present case are shown to be cotton or knit harnesses, but it-will be obvious that my invention is'applicable to machines employing' meta llic or wireheddles at will.- r r The thread-placing device, herein a drawing needle 6, is mounted for reciprocatory movement transverse to the reed and harnesses upon the carriage 7 adapted to slide along the bed 1'.

The'reed dent is opened and the reed positioned by a suitable reed opener 11 which may be like that shown in Patent, No. 871,680, and a heddle eye from the desired one of the several harnesses is selected and.

positioned in the path of the needle by suitable means, such as the harness worms 12 like those shown in Patent No. 755,861. The reed and harness-eye positioning devices are carried upon driving shafts or rods having each one end journaled or supported on a pattern head or carrier 13 and the opposite end upon supports 14 carried by the bracket 15. Both the pattern head and the bracket are attached to and form a part of the needle carriage 7 and with the latter are progressively fed along the bed of the machine by means of the lead screw 16 (Fig. 2) which engages with the split nut 17 depending from the carriage.

The various heddle and reed positioning devices together with the thread-selectin and separating devices about to be describe are all driven through pattern mechanism carried by the pattern head. Such mecha nism is well known in machines of this class and the details thereof form no essential part of the present invention, but they serve to turn the several separating shafts at intervals in predetermined order of selection so that for each cycle of needle movement a heddle from any predetermined harness may be presented and one or more threads drawn therein or heddle eyes may be skipped or any desired order of drawing-in may be followed out.

Referring now to the holder for the warp threads, the latter are supported upon a frame or carriage at the rear of the machine, such frame comprising the end members 18 connected by the tie rods 19 and sus tained by the oppositely extending supporting rods 20 which rest in grooved rollers 21 on the frame, so that the carriage is susceptible of a limited endwise movement or adjustment which will be later described.

To hold the Warp threads, the end members 18 carry slide rods 22 which support the arms 23, each of which is grooved at 24: (see Fig. 4) to receive a thread clamp 25, the latter resting loosely in the groove. The free ends of the warp threads being held by the clamp 25, the opposite end of the warp where it passes to the beam (not shown) is also held tightly clamped by the clamping member 26 carrying the insertion bar 27, and sustained at the bottom of the carriage.

The clamping member 26 at each end is held between the arms of a U-shaped bracket 28 (Fig. 1) the latter adapted to slide up and down a guide rod 29 depending from the end member 18. A coiled spring 30 inclosed between the bracket and a washer 31 fixed at the bottom of the rod tends to elevate the clamp and the bracket, but the latter maybe pressed down and locked in any de sired position by means of the pawl 32 which engages with teeth 33v on the guide rod. The pawl is normally pressed into engagement with the teeth by the spring 34, but may be withdrawn by the head 35. The warp when clamped in the machine is held in leased condition by means of the shafts 36 and 37 which act as lease rods, threads in alternation passing on opposite sides of the said rods and forming a line of thread crossings between the same.

Referring now to the devices for separating and positioning successive threads in the path of the needle, while such devices in whole or in part might be elsewhere positioned, herein they are embodied in a single unitary member carried by and reciprocatively moved by one of the lease rods 36. In the described form of the invention such unitary member comprises a sleeve 38 (Figs. 3, 5, 6, 7 and 9) so related to the rod 36 that, as the latter is given a rocking or oscillatory movement, devices projecting from the sleeve are caused to release first a thread on one side of the lease and then the next adjacent thread on the opposite side thereof and to force or wedge such released threads along to be engaged by other feeding and separating devices until positioned in the path of the needle, the foremost threads, however, being preferably held apart by an appreciable separation so as to form a distended fan-shaped group as represented on Figs. 3 and 7 this enabling the operative at all times to observe the behavior of the selecting mechanism and quickly to detect a fault even when the machine is operating at a high rate of speed.

Referring to the devices carried by the sleeve and particularly to Figs. 6 and 9, the sleeve at one end is provided with a wing or picker member 39 which terminates in edge portions 40 approximately 180 apart. The edge portions are relatively thin released series so that such series of leased threads is constantly pressed back as represented in the drawings. Assuming that the thread at the left of the shaft 36 in Fig. 9 is the foremost thread of the confined leased series, if the shaft is then turned in the direction of the arrow to the dotted line position therein shown, the picker 39 through engagement with the next successive thread at the right will continue to hold back such next thread and all successive threads, the foremost thread at the left thereupon tending to spring forward and separate itself from the rest of the series. Even in the finest grades this separation will be suflicient to permit the entrance of Mother set (Fig. 6).

the edge 40 between the separated thread and the remaining threads on the return of the picker from the dotted line position to the full line position as the shaft 36 is s rocked back.

latory movement of the sleeve and insure the certain picking off of the released thread. It will be obvious that when the picker oscillates back from the dotted line position shown in Fig. 9 to the full line position thereof, the foremost thread on the right hand side is released to be subsequently picked off onthe reverse oscillation of the picker, this action being repeated first on one side and then on the other, with successive movements of the separator.

The oscillatory movement of the lease rod and separating'device thereon, which movement is preferably somewhat more than 180, will cause the successive release of single alternate threads and their forcible separation from the rest of the series by the interposition of the beveled separating.

lip 4:3.

l/Vhile the released thread might be further separated by the employment of separate or independently movable devices,-

herein the beveled face 41 of the releasing member itself is relied upon to wedge the picked-off thread farther away from the unreleased series on further movement of the separator, the position of the picked-off thread when the separator has completed its half-oscillation being approximately that had by the thread 42 (Figs. 3 and 7). It will thus be seen that the separation and primary feeding movement of the thread is effected by the wedging action, of a member moving transversely the extent of the warp, and herein the turning movement of the releasing and selecting member itself.

Prior to seizure by the drawing-in needle the separated threads are preferably conveyed still farther away from the main'body of threads, this being preferably accomplished through a step-by-step movement, so that there remains at all times a series of widely separated threads as .represented in Figs. 3 and 7, which the operative can watch. Such feeding or conveyance of the separated threads may be effected through. other devices or through devices elsewhere positioned, but herein it. is obtained by means of members carried by the sleeve 38 itself, such members comprising feeding, wedgeshaped lips 4:4:- Thcse lips, are arranged in two sets on opposite sides of the sleeve, the members of one set being in staggered relation .to the members of the Each wedging lip terminates in an edge 45, the advance side of which lies in a plane substantially transverse tothe axis of the sleeve, but the opposite side of which is beveled or wedgeshaped as shown. When the thread has been released, selected and primarily separated by the releasing and separating lip.39, that thread is left in such a positionthatonthe: reverse oscillation of the sleeve it is en-- gaged by the beveled edge of the foremost member (herein designated as 44*) of the series of wedging lipson the opposite side of the sleeve and on the continued move-. ment of the sleeve" wedged still farther along. On the next or reverse oscillation of the sleeve it is engaged by the foremost wedging lip (designated M of the opposite series and advanced still farther, and so 011 with each turn of the sleeve until it finally reaches a position directly in the needle path.

most thread reaches its extreme forward position and the latter thread is then wedged against the side of the needle to be seized by the latter on its return movement.

' The separation of the threads is facili-- tated by a stroking or smoothing action and herein this is conveniently and effectively obtained by imparting a rotary movement to the lease rod 37. This particularly in connection with the oscillatory movement of the rod 36 tends to straighten the unseparated threads and free them one from another. This efiect is further increased by introducing irregularities such as the corrugations 46 and 47 in the surface of the shafts so that the threads are more or less agitated prior to release. The efficiency of the select-- ing and separating mechanism, moreover, is also increased by placing an increased tension on the particular threads which are Within the influence of the separating and selecting devices, and herein this is securedby gradually increasing the diameter of one or both shafts 36 and 37 adjacent the'separating sleeve so that the threads immediately adjacent the latter are placed under an increased tension. Referring now to the supports and driving connections for the shafts 36 and 37, they are both driven from the driving shaft 48 (Fig. 11), the latter being driven, as stated above regularly or intermittently as may be desired through. suitable pattern mechanism by the aid of a clutch device 48 The shaft 48 has the gear 49 meshing'with the gear 50, the latter operatively related to the driving shaft 51. Rotary movement is transmitted from the shaft 51 to the shaft 37 through the transmission sleeve 52 fixedly secured to the end of the shaft 51. The shaft 37 is removably secured in the end of the sleeve by means of a hinged latch 53 which. is nor- The needle preferably is so timed that it projected beyond the threads before the foremally spring pressed into a slot in the end of the shaft and may be lifted therefrom to leave the shaft free for withdrawal. The key acts both to prevent longitudinal or rotary displacement of the shaft Within the sleeve. The separator shaft 36 is removably secured to a driving sleeve 54: of similar construction. The driving sleeve 54 receives an oscillatory movement from the shaft 51 by means of the pinion 55 secured to the sleeve and meshing with the sector gear 56 pivoted at 57 on the pattern head frame. The latter is oscillated by means of the cam roll 58 eccentrically mounted upon the shaft 51 and working within a slot 59 in the sector.

At their opposite ends both shafts 36 and 37 are supported by the member 60 carried by the bracket 14: (Figs. 3, 4 and 7). The shaft 36 has a projecting end 61 journaled in the end of the bearing member 62, which latter is removably held in the support 60 by means of the spring pressed pin 63 engaging a groove 6 in the bearing member. The rod 37 has a part 65 which for a purpose to be described is fixedly secured to the member 66, the latter turning with the shaft 37 in the support 60 but adapted to be removed therefrom and to be disconnected from the shaft in the same manner as the bearing member 62.

The selecting and separating sleeve is adjustably connected to the shaft in the following manner: The end of the sleeve opposite the picker 39 is provided with a knurled head 67, the outer face of which (Figs. 7 and 10) is provided with a groove 68' terminating in depressions 69 approximately 180 apart, adapted to be engaged by a pin 71 which projects from the face of the collar 70. In the operative position of the sleeve the pin enters a depression midway between the depressions 69 and serves thereby to couple the sleeve to the shaft. The pin 71 passes directly through the collar and is secured to a sliding head 72 at the opposite end thereof, which head may be slid to the left (Fig. 7) to draw the pin from the central depression. When thus withdrawn the sleeve is free to be turned and may be turned within the limits of the groove 68 and may be locked in either of two positions by allowing the pin to enter one of the depressions 69. By this means the sleeve can be thrown either forward or backward 90 from its operative position and rendered inoperative to select the threads, such adjustment being sometimes desirable when first starting the machine into operation or where adjustment is necessary, in order that the operative may continue to run the machine without selecting threads. v

To the collar 72 there is also secured a screw 73 working in a pocket against a spring 7 1 so that the collar and therefore the pin 71 is normally drawn to the position shown in Fig. 7.

In the operation of the machine it will. be seen that the two rods 36 and 37 together with the selecting and separating sleeve 38 travel with the needle carriage and pass through the leased warp from one end to the other constantly pressing back the leased threads as represented in Fig. 3.

In the described form of machine the warp threads, while clamped fast in the lower clamp 26, have their free ends frictionally held by the clamp 25 so that the pull of the needle on a given thread will draw it free from the upper clamp. If desired, of course, the threads might be held with an unyielding grip in the upper clamp and severed each from its clamped end prior to or when it is seized by the needle.

In drawing warp threads which are of small diameter and large number to the inch and particularly where the ends of such threads are held loosely for withdrawal from the clamp, I preferably employ in connection with thread selecting and separating mechanism, auxiliary means for forcing upon the leased threads an extra amount of tension at the time of selection, which tension, however, is preferably relieved before the thread is seized by the needle. In the case of fine threads, especially, such tension overcomes any tendency of the foremost thread of the lease when freed to cling to the succeeding thread and thereby prevent the beveled edge 43 of the separating lip from passing between the two threads. This result may be secured in a variety of ways, butherein I have provided tensioning means which act intermittently upon the foremost group of threads so that, as the separator is about to pick off its thread, those threads which are within the control of the selector and separator, or are about to pass within its control, are placed under a much greater tension than can be had from the adjustment of the clamps. Before the needle seizes the thread, however, this tension is relieved so that the seized thread is readily pulled free from the clamp by the needle.

Referring to Figs. 3, 4, 5 and 7, the tensioning means comprises a pair of rotary tensioning members 80, segmental in shape having opposed curved faces covered with felt, leather or other suitable friction material. These are of sufficient longitudinal extent to overlap the foremost threads undergoing selecting and separation and are arranged in proximityv to each other so that (see Fig; 5) when turned in the direction of the arrows the threads are gripped between the two tensioning members and, as the lat ter continue to turn, are then stretched tightly up and across the lease rods. As the members continue their movement the threads are released and again relaxed. This not only tensions the threads, but also strokes or wipes them intermittently which further assists their separation. This wiping and tensioning action takes place just prior to the movement of the beveled edge 43 across the line of thread crossings so that, when that occurs, the threads are well tensioned.

The tensioning members 80 are rotatably mounted in the upright arm 81 secured to the support 60 so that they travel with the needle carriage in fixed relation to the thread selector. To impart rotative movement to the tensioning members they are mounted upon shafts 82 and 83 which carry intermeshing gears 8 1 and 85', the shaft 83 also having the sprocket wheel 86 to which turning movement is transmitted through the sprocket chain 87, the latter driven from a sprocket wheel 88 on the end of the driven member 66. As the upper lease rod 37 therefore is rotated, the tensioning devices are turned in synchronism therewith and in opposite directions each to the other.

To install the leased warp in the machine prior to drawing in, the warp beam with the warp ends clamped in the clamps 25 is brought back of the machine on a truck or other suitable device. The clamp 25 is then placed in the pocket 24: on the brackets 23 and the rods 36 and 37 removed from the machine and inserted in the lease in place of the tapes with which the leased warp is provided when it leaves the slasher. The rods are then inserted in the machine and with the clamp 26 in its uppermost position the insertion bar 27 is laid across the back of the warp threads and thelatter clamped thereby. The clamping bar 26 is then depressed as far as possible to stretch the threads tightly in the warp frame.

It is desirable that the selector and separator maintain a substantially constant relation to the warp threads. To compensate for the difference between the width of the warp and the travel of the needle carriage, the warp carriage may be shifted longitudinally in one direction or the other. To provide for this adjustment the warp carriage has a rack bar 90 the teeth of which are engaged by a worm wheel 91 to which is secured the ratchet wheel 92 adapted to be intermittently turned by a pawl 93. The pawl is secured to a pin 94 the latter loosely journaled in the end of a swinging arm 95 mounted to swing about the shaft of the worm wheel. The opposite end of the pin is secured to a stop lever 96 which is adapted to contact with an adjustable stop screw To reciprocate the pawl, there is con- 7 nected to the stop lever 96 a rod 98, the

other end cf which is pivotally connected to a slotted portion in a reclprocatory actuit retracts it first disengages the pawl and then causes the stop lever to engage thecontact screw and then causes the pawl to dlsengage the stop lever and the swinging arm to swing as a unit about the worm shaft. To compel the release of the pawl before the movement of the swinging arm, the latter is preferably held with more or less friction on the worm shaft as by means of the spiral spring 100. I

If desired the worm 91 may beturned and the warp carriage adjusted by hand independent of the power adjustment. For this purpose the machine iszprovided with the rotative rod 101 carrying the gear 102 which meshes with the gear 103 and thereby drives the sprocket wheel 104 and chain'105. The chain is connected to turn the sprocket wheel 106 fixedly secured to the worm 91.

If the operative desires to, work the separator slowly for purposes of adjustment or correction without working the rest of the machine he can turn it from one position to another through the'range of movement allowed by the slot 68. To do this he must first take the precaution that the machine is stopped with the separator in its mid-position. By then freeing the pin 71 the head 67 of the separator can be turned so that the latter will be moved from the full line to the dotted line position shown in Fig. 9 and vice versa.

To avoid the trouble incidental to stopping the machine, with the separator in any required position, I have provided means for oscillating the separator and its shaft by hand in precisely the manner in which it is oscillated by the machine, but without moving the pattern or other mechanism on the machine. For this purpose (Fig. 7) the end of the driven member 66 is provided with a knurled head or hand wheel 107 by means of which the operator can turn the shaft 37 at will. At its opposite end the shaft 37 is provided with means whereby when turned reversely it will oscillate the shaft 36 without affecting the driving shaft 48. To this end (see Fig. 11) the shaft 51 has splined thereon a toothed member 108 which is'normally pressed into engagement with a toothed hub 109 on the gear 50 by.

the shaft 51, however, reciprocates the sector 56 and the shaft 36 in precisely the same .manner as when driven by the main driving mechanism of the machine so that the separator is oscillated. By this means the operative can oscillate the separator by hand as slowly as required and make all necessary corrections or adjustments with out starting up the machine.

iVhile for purposes of illustration I have herein shown and described one form of the invention, it is to be understood that the latter is not limited to the details of construction or the specific form or arrange ment of parts herein described, but that extensive deviations may be made therefrom without departing from the spirit of the invention.

Claims 1. In a mechanism for selecting and separating loom members held in leased condition, a reciprocatory wedge-shaped device adapted by its movement in one direction to release successive members, said device on its return movement being adapted to enter between the released member and the main body and by said return oscillatory movement enforce a further separating movement of the released member.

2. In a mechanism for selecting and separating loom members held in leased condition, a pair of reciprocatory wedge-shaped devices adapted each on movement in one direction to release the foremost member of the lease, the remaining members being held back by the other device, and on movement in the opposite direction to enter be tween the released member and the main body and further move the released member.

3. In mechanism for selecting and separating loom members held in leased. condition, an oscillatory member located Within the lease and presenting an abutment to hold back the leased members, said abutment being alternately presented to and withdrawn from opposite sides of the lease by the os cillatory movement of said member and presenting also a pair of wedge-shaped members adapted each on the withdrawal of the abutment from one side of the lease and on the reverse movement of the said oscillatory member to enter between the released member of the lease and the main body and enforce a further separating movement of the released member.

at. In a mechanism for selecting and separating loom members held in leased condition, an oscillatory member located within the lease adjacent the line of crossing of the leased members, and presenting an abutment to hold back the leased members, said abutment being alternately presented to and withdrawn from opposite sides of the lease by the oscillatory movement of said member and presenting also a pair of diametrically opposite beveled lips working across the line of crossing of the leased members, said lips being adapted each on the withdrawal of the abutment from one side of the lease and on the reverse movement of the said member to enter between the freed member of the lease and the main body and enforce a further separating movement of the released member.

5. In a thread-placing machine, the combination. with a series of leased loom members of thread-placing means movable relatively to said leased members, a shaft eX- tending through the lease, means for oscillating said shaft, an abutment carried by said shaft to hold back the leased members, said abutment being alternately presented to opposite sides of the lease by the oscillating movement of the shaft, and pair of wedge shaped members adapted each on the withdrawal of the abutment from one side of the lease and on the reverse movement of the said shaft to enter between the freed member of the lease and the main bod and enforce a further separating movement of the released member, said abutment and wedge-shaped members being movable relatively to the lease with the thread-placing means.

6. In a mechanism for selecting and sepa rating loom elements held in leased condition, an oscillatory member located within the lease and presenting a raised abutment extending approximately through 180 and terminating in beveled lips having each an edged portion working across the line of crossings of said leased members, the wedge of said lips being on the side thereof opposite the unseparated members.

7. In a thread placing device the combination with means for holding a leased warp, of a reciprocatory leased warp wedge separator adapted to constantly bear against the unseparated warp threads and adapted to present a wedge-shaped surface to a released thread.

8. In a mechanism for selecting and separating loom members held in leased condition, an oscillatory wedge-shaped device adapted by its movement in one direction to release successive members, said device on its return movement being adapted to enter between the leased member and the main body and by said return oscillatory movement enforce a further separating movement of the released member. 4

9. In a mechanism for selecting and separating loom members held in leased condition, a pair of oscillatory wedge-shaped devices adapted each on movement in one direction to release the foremost member of the lease, the remaining members being held back by the other device, and on movement in the opposite direction to enter between the leased member and the main body and further move the released member.

10. The combination with mechanism for separating loom members held in leased condition and adapted to be selected byrelease one by one from the main body of members, said mechanism including oscillatorymeans having a separating movement whereby it is interposed between the foremost member and the main body, and serves to release the former from the latter, said means by the same movement being adapted to convey still further the freed member from the body of leased members and automatic tensioning means for tensioning the members.

11. The combination with mechanismfor separating loom members held in leased condition and adapted to be selected by release one by one from the main body of members, said mechanism including means constantly pressed against the main body of members and having a separating movement whereby it is interposed between the selected member and the main body, said means by the same movement being adapted to convey still fur ther the freed member from the body of leased members and means for automatically tensioning the members undergoing separation while leaving unafi'ected the main body of leased members. p p

12. The combination with mechanism for separating loom members held in leased con dition and adapted to be selected one by one by release from the main body of members, said mechanism including a device having an oscillatory turning movement across the lease whereby it is interposed between the selected member and the main body and automatic means for tensioning the members on each side of said lease.

l3.'The'combination with mechanism for SQPZtI'iLlZlIlP; loom members held in leased condition and adapted to be selected one by one by release from the main body of members, said mechanism including a device having a turning movement across the lease whereby it is interposed between the selected member and the main body, and automatic tensioning for tensioning on both sides of the lease means the foremost leased members only.

14. The combination with means for holding a series of leased loom members adapted to be released one by one from the main body, of an oscillatory separator adapted to enter between the separated member and the main body, and automatic tensioning means for tensioning the members on each side of said lease. 1

15'. The combination with means for holding a series of leased loom members adapted to be released one by one from the main body, of an oscillatory separator adapted to enter between the separated member and the main body, and means for automatically tensioning on both sides of thelease the foremost leased members only.

16. Mechanism for selecting and separating loom members held in leased condition, a reciprocatory wedge-shaped device adapted by its movement in one direction to free successive members, said device on its return movement being adapted to enter between the leased member and the main body and enforce a further separation, and means for automatically tensioning the said members on each slde of said lease.

17. In a mechanism for selecting and separating loom members held in leasedcondition, a pair of reciprocatory wedge-shaped devices adapted each on movement in one direction to free the foremost member-ofthe lease, the remaining members being held back by the other device, and 011 movement in the opposite direction to enter between the leased member and the main body and wedge them. farther apart, and means for automatically tensioning the said members on each side of said lease.

18. In mechanism for selecting and separating loom members held in leased condition, an oscillatory member located within the lease and presenting an abutment to hold I back the leased members, said abutment be ing alternately presented to and withdrawn from opposite sides of the lease by the. oscillatory movement of said member and presenting also a pair of wedge-shaped members adapted each on the withdrawal of the abutment from one side of the lease and on the reverse movement of the said oscillatory member to enter between the freed member of the lease and the main body and Wedge them farther apart, and means for automatically tensioning the said members on each side of said lease.

19. In a mechanism for selecting and separating loom members held in leased condi-. tion, a reciprocatory wedge-shaped device adapted its movement in one direction to free successive members, said device on its return movement being adapted to enterbetween the leased member and the main body and enforce'a further separation, and means for automatically applying a supplementary tension on both sides of the lease to the fore tension on both sides of the lease to the foremost of the leased members only.

21. In mechanism for selecting and separating loom members held in leased condition, an oscillatory member located within the lease and presenting an abutment to hold back the leased members, said abutment being alternately presented to and withdrawn from opposite sides of the lease by the oscillatory movement of said member and presenting also a pair ofwedge-shaped members adapted each on the withdrawal of the abutment from one side of the lease and on the reverse movement of the said oscillatory member to enter between the freed member of the lease and the main body and wedge them farther apart, and means for automatically applying a supplementary tension on both sides of the lease to the foremost of the leased members only.

22. The combination with a reciprocatory leased warp wedge separator mounted to turn about an axis and adapted to present a wedge-shaped surface to release a warp thread, and advance the released thread, of thread tensioning means cooperating therewith.

23. In a thread-placing machine, the combination with a series of leased loom members of thread-placing means movable rela tively to said leased members, a shaft extending through the lease, means for oscillating said shaft, an abutment carried by said shaft to hold back the leased members, said abutment being alternately presented to opposite sides of the lease by the oscillating movement of the shaft, and a pair of wedgeshaped members also carried by the shaft adapted each on the withdrawal of the abutment from one side of the lease and on the reverse movement of the said shaft to enter between the freed member of the lease and the main body and advance the freed member, said abutment and wedge-shaped members being movable relatively to the lease with the thread-placing means, and means for automatically tensioning the members adjacent the said abutment.

24-. In mechanism for selecting and separating loom members held in leased condition, the combination with selecting and separating means of a rotatable lease rod.

25. In mechanism for selecting and separating loom members held in leased condition, the combination with selecting and separating means of a rotatable lease rod, and a second lease rod carrying said selecting and separating means.

26. In mechanism for selecting and separating loom members, held in leased condition, the combination with selecting and separating means of a rotatable lease rod and an oscillatory lease rod carrying said selecting and separating means.

27. In mechanism for selecting and separating loom members held in leased condition the combination with selecting and separating means of a rotatable lease and an oscillatory lease rod.

28. In mechanism for selecting and separating loom members held in leased condition, the combination with selecting and separating means of a lease rod having an increasing size in the vicinity of said selecting and separating means.

In mechanism for selecting and separating loom members held in leased condition, the combination with selecting and separating means of a lease rod having a cone-shaped formation in the vicinity of said selecting and separating means.

80. In mechanism for selecting and separating loom members held in leased condi tion, the combination with a thread-placing device having movement relatively to the leased members, of a lease rod movable with said thread-placing device and having a movement to stroke the leased members, selecting means and a second lease rod also movable with said thread-placing device and carrying said selecting device.

31. In mechanism for selecting and separating loom members held in leased condition, the combination with selecting and separating means of a movable lease rod adapted to stretch both sets of leased members in a longitudinal direction.

32. In a mechanism for selecting and separating loom members held in leased condition, a reciprocatory wedge-shaped device adapted by its movement in one direction to free successive members, said device on its return movement being adapted to enter between the leased member and the main body and enforce a further separation, and a lease rod adapted to put increased tension on the leased members in the vicinity of said wedgeshaped devices.

33. In mechanism for selecting and separating loom members held in leased condition, a pair of reciprocatory wedge-shaped devices adapted each on movement in one direction to free the foremost member of the lease, the remaining members being held back by the other device, and on movement in the opposite direction to enter between the leased member and the main body and wedge them farther apart, a member on which said devices are mounted to turn and a lease rod adapted to put increased tension on the leased members in the vicinity of said Wedgeshaped devices.

34. In mechanism for selecting and separating loom members held in leased condition, an oscillatory member located Within the lease and presenting an abutment to hold back the leased members, said abutment being alternately presented to and withdrawn from opposite sides of the lease by the oscillatory movement of said member and presenting also a pair of wedge-shaped members adapted each on the withdrawal of the abutment from one side of the lease and on the reverse movement of the said oscillatory member to enter between the freed member of the lease and the main body and wedge them farther apart, a lease member by which the oscillatory member is carried, and a lease rod adapted to put increased tension on the leased members in the vicinity of said wedgeshaped devices.

35. In mechanism for selecting and separating loom elements held in leased condition, an oscillatory member located within the lease adjacent the line of crossing of the leased members, and presenting an abutment to hold back the leased members, said abutment being alternately presented to and withdrawn from opposite sides of the lease by the oscillatory movement of said member and presenting also a pair of diametrically opposite beveled lips working across the line of crossings of the leased members, said lips being adapted each on the withdrawal of the abutment from one side of the lease and on the reverse movement of the said member to enter between the freed member of the lease and the main body and Wedge them farther apart, a lease member by which the oscillatory member is carried, and a lease rod adapted to put increased tension on the leased members in the vicinity of said wedge-shaped devices.

36. Ina thread-placing machine, the combination'with a series of leased loom members of thread-placing means movable relatively to said leased members, a'shaft extending through the lease, means for oscillating said. shaft, an abutment carried by said shaft to hold back the leased members, said abutment being alternately presented to opposite sides of the lease by the oscillating movement of the shaft, and a pair of wedgeshaped members adapted each on the with: drawal of the abutment from one side of the lease and on the reverse movement of the said shaft to enter between the freed member of the lease and the main body and wedge them farther apart, said abutment and wedge-shaped members being movable relatively to the lease with the threadplacing means, and a lease rod adapted to put increased tension on the leased members in the vicinity of said wedge-shaped devices.

37. In mechanism for selecting and separating loom members held in leased condition, the combination with a lease rod carrying a member for crowding back the unreleased loom member, of a second lease rod on the opposite side of the line of crossings of said leased member, said second rod having means for placing the loom members under tension.

38 In mechanism for selecting and separating loom members held in leased condi tion the combination with means to separate and hold separated'the foremost group of members and means to place an increased tension over the separated group.

39. In mechanism for selecting and separating loom members held in leased condition, the combination with means to separate and hold separated the foremost group of members, and means working within the lease for stroking the separated group of members. 7 I I 40. In mechanism for selecting andseparating loom members held in leased condi-' tion and adapted to be selected by release one by one from the main body of members, a selector having. a separating movement whereby it is interposed between the selected member and the main body, a threadplacing device, and separate members mounted to move with said selector to receive the separated member and further advance it into the path of the thread-placing device.

41. In mechanism for selecting and separating loom members held in leased condition and adapted to be selected by release one by one from the main body of members, the combination with separate reciprocating means having a separating movement whereby it is interposed between the selected member and the main body, a thread-placing device, said means having also separatemem bers to receive the separated member and further advance it into the path of the thread-placing device.

42. In mechanism for selecting and separating'loom members held in leased condition and adaptedto' be selected by release one by one from the main body of members, oscillatory means having a separating movementwhereby it is interposed between the selected member and the main body, a thread-placing device, and separate members movable with said oscillatory means to receive the separated member and further advance it into the path of the thread-placing device. i 1 43. In mechanism for selecting and separating loom members held in leased condition and adapted to be selected by release one by one from the main body of members,

the combination with aselectorworking in vance the released member and additional wedge-shaped means subsequently to engage said member and still further separate it from the main body.

16. In mechanism for selecting and separating loom members held in leased condition and adapted to be selected one by one by release from the main body of members, the combination with means having a separating movement whereby it is interposed between the selected member and the main body and one or more pairs of reciprocatory wedge-shaped members, the members of each pair being arranged in alternation and to act alternately upon the separated members of opposite sides of the lease to still further separate them from the main body whereby the separated member is first engaged to be advanced by one member of the bar and then by the remaining member thereof, and

so on.

47. In mechanism for selecting and separating loom members held in leased condition and adapted to be selected one by one by release from the main body of members, the combination with means having a separating movement whereby it is interposed between the selected member and the main body and one or more pairs of oscillatory wedgeshaped members, the members of each pair being arranged in alternation and to act alternately upon the separated threads of opposite sides of the lease to still further separate them from the main body whereby the separated thread is first engaged to be advancedby one member of the pair and then by the remaining member thereof, and so on.

48. In mechanism for selecting and separating loom members held in leased condition, the combination with an oscillatory member working within the lease and adapted to free members alternately from opposite sides of the lease, of one or more oscillatory wedge-shaped members also working within the lease and adapted to advance the released member step-by-step and further separate the same.

49. In mechanism for selecting and separating loom members held in leased condition, areciprocatory Wedge-shaped device adapted by its movement in one direction to free successive members, said device on its return movement being adapted to enter between the released member and the main body and advance the released member, and a second reciprocatory wedge-shaped member adapted to engage the separated member when free from said wedge-shaped device and still further separate the same.

50. In mechanism for selecting and separating loom members held in leased condition, means for separating and holding separated a plurality of members at a time and advancing them intermittently step by step.

51. In mechanism for selecting and sepa rating loom members held in leased condition, the combination with means for freeing the members alternately from the opposite sides of the lease, of -a series of oscillatory wedge-shaped members adapted to engage alternately with separated threads on opposite sides of the lease and advance the same by step-by-step movement.

52. In mechanism for selecting and separating loom members held in leased condition, an oscillatory member within the lease and presenting an abutment to hold back the leased members, said abutment being alternately presented to and withdrawn from opposite sides of the lease by the es cillatory movement of said member, and a pair of oppositely disposed wedge-shaped members carried by said oscillatory member adapted each on the withdrawal of the abutment from one side of the lease and on the reverse movement of the oscillatory member to enter between the freed member of the lease and the main body and presenting the wedge-shaped surface to the freed member to enforce a further separating movement.

53. In mechanism for selecting and separating loom members held in leased condition and adapted to be selected by release one by one from the main body of members, an oscillatory wedge-shaped member adapted to be interposed between the selected member and the main body, and a second oscillatory wedge-shaped member adapted to engage the separated member where left by said first member and further separate the same.

54. In mechanism for selecting and separating loom members held in leased condi tion, an oscillatory member located within the lease and presenting one or more pairs of raised abutments extending approximately through 180 and terminating in beveled ends, the members of the several pairs being arranged in alternation lengthwise the said member.

55. In a thread-placing device a thread holder having a movable clamp bar, ratchet and pawl means to adjust the clamp bar to a position of tension, and spring means to return the clamp bar when the pawl is released.

56. In a thread-placing device a thread holder having a movable clamp bar, means for holding the clamp bar in a position of tension, and spring means to return the clamp bar to a tensionless position.

57. In a thread-placing device a thread holder having a movable clamp bar, means to hold the clamp bar automatically locked when adjusted to place tension on the threads, and means to release said clamp bar from its locked position.

58. In a thread-placing device a thread holder having a movable clamp bar and means to release said clamp bar and automatically to move the same to a tensionless position.

59. In a mechanism for selecting and separating loom members held in leased condition and adapted to be selected one by one by release from the main body of members, wedged-shaped means having a reciprocatory turning movement across the line of crossings of the leased members and imparting thereby to the released member a movement of separation.

60. In a mechanism for selecting and separating loom members held in leased condition and adapted to be selected one'by one by release from the main body of members, the combination with wedged shaped means having a reciprocatory turning movement across the line of crossings of the leased members and imparting thereby to the released member a movement of separation, of additional tension means for placing additional tension on the members in the vicinity of the separator.

61. In mechanism for separating and selecting loom members held in leased condition the combination with separating means for separating said members and having a separating movement relative thereto, a member on which said separating means is carried, said member being automatically and longitudinally movable through said leased loom members, and a lease rod also automatically and longitudinally movable through said leased loom members during the operation of the machine.

In mechanism for separating and selecting loom members held in leased condition, the combination with thread-engaging means having a separating movement relatively to said members and a pair of lease rods movable through said members with said thread engaging means.

63. A mechanism for selecting and separating loom members held in leased condition and adapted to be selected by release one by one from the main body of members, reciprocatory selecting means having a separating movement whereby it is interposed,

tion and adapted to be selected byprelease one by one from the main body of members, oscillatory means having a separating movement whereby it is interposed between the selected member and the main body, said means by the same movement being adapted to convey still 'further the freed member from the body of leased members.

65. A mechanism for selecting and sepa rating loom members held in leased condi tion and adapted to be selected by release one by one from the main body of members, of means working within the lease and having a separating movement whereby it is interposed between the selected member and the main body, said means by the same movement being adapted to convey still further the freed member from the body of leased members.

66. In a mechanism for separating and selecting loom membersheld inleased condition, the combination with a main driving mechanism of a single unitary member for separating a released member and for also conveying it to a new position, and means for manually moving said separator independently of the main driving mechanism.

67. In a mechanism for separating and selecting loom members held in leased condition,'the combination with a main driving mechanism of a single unitary, oscillatory separator adapted both to separate and convey a leased member, and means for manually oscillating said separator independently of the main driving mechanism.

68. In a machine for acting upon warp threads, the combination with means for holding the threads in a leased arrangement of a thread-separating device having a member arranged to continuously bear against the warp threads where the latter cross one another, and means for reciprocatively moving said separating member from one side to the other of the point where the threads cross.

69. In a machine for acting upon warp threads, the combination with means. for holding the threads in a leased arrangement of a thread-separating device having a wedge-shaped separating member arranged to continuously bear against the warp threads where the latter cross one another,

70. In a machine for acting upon warp threads, the combination with means for holding the threads in leased condition of a separating device movable about an axis on the opposite side of which the threads are held in alternating arrangement, said device having a separating member adapted to bear continuously against the warp threads where the threads cross one another, and means for reciprocatively moving the same from one side to the other of the point where they cross.

71. In a thread placing machine, the combination with thread placing means of means for holding warp threads with their ends loosely clamped, wedge-shaped thread selecting and separating means, and means for tensioning those threads only undergoing separation.

72. The combination with oscillatory means for separating loom elements held in leased condition, said means being located within the lease, means for automatically tensioning said elements, and for maintaining such tension during the separation of said elements by said separating means.

7 3. The combination with means for separating'loom elements held in leased condi: tion, said means being located within the lease, of means for automatically tensioning the elements undergoing separation and for maintaining such tension during the separation of said elements by said separating means, while leaving unaffected the main body of elements.

7 4. The combination with oscillatory means for crowding back a series of leased members and alternately freeing the foremost member from opposite sides of the lease, said means being operated by devices within the lease, of means for automatically tensioning said elements and for maintaining such tension during the action of said oscillatory means.

7 5. The combination with mechanism for separating loom elements held in leased con dition and adapted to be selected one by one by, release from the main body of elements, said mechanism including a device having an oscillatory turning movement across the lease whereby it is interposed between the selected element and the main body and automatic means for tensioning the elements and for maintaining such tension during the action of the said selecting device.

7 6. The combination with mechanism for separating loom elements held in leased condition and adapted to be selected one by one by release from the main body of elements, said mechanism including a device having a turning movement across the lease whereby it is interposed between the selected element and the main body, and automatic tensioning means for tensioning the foremost leased elements only and for maintaining such tensioning during the action of the said selecting device.

7 7 The combination with means for holding a series of leased loom elements adapted to be released one by one from the main body, of an oscillatory separator adapted to enter between the separated element and the main body, and automatic tensioning means for tensioning the elements and for main taining such tension during the separation of said elements by said separator.

78. The combination with means for holding a series of leased loom elements adapted to be released one by one from the main body, of an oscillatory separator adapted to enter between the separated element and the main body, and means for automatically tensioning the foremost leased elements only and for maintaining such tension during the separation of said elements by said separator.

79. In a machine for acting upon warp threads the combination with means for holding the threads in leased condition, a thread separating device mounted to turn about an axis and arranged to continuously bear against the warp threads at approximately the point where the latter cross one another, and means for reciprocatively turning said separating member from one side to the other of the point where the threads cross, said member in its movement traveling over the line of thread crossings.

80. The combination with oscillatory means for separating loom members held in leased condition, said means being located within the lease, a releasing member, of means for automatically and simultaneously tensioning said members on both sides of said leasing member.

81. The combination with means for separating loom members held in leased condition, said means being located within the lease, a releasing member, of means for auto matically tensioning the member undergoing separation, while leaving unaffected the main body of members on both sides of said leasing member.

82. The combination with oscillatory means for crowding back a series of leased mem bers and alternately freeing the foremost member from opposite sides of the lease, said means being operated by devices within the lease, a releasing member, of means for automatically and simultaneously tensioning said members on both sides of said leasing member.

83. The combination with means for crowding back a series of leased members and alternately freeing the foremost member from opposite sides of the lease, said means being operated by devices within the lease, a releasing member, of means for automatically tensioning on both sides of said leasing members certain ones of the leased members.

84. In a thread placing device the combination With means for holding a leased Warp of an oscillatory leased Warp Wedge separator constantly bearing against the unseparated Warp threads at approximately a point Where the latter cross one another and adapted to present a Wedge-shaped surface to a released thread.

85. In a machine for. acting upon Warp threads, the combination With means for holding the threads in a leased arrangement, of a thread separating device having a member arranged to continuously bear against the Warp threads at approximatelythe point H Where the latter cross one another, and means for reciprocatingly moving said separating device from one side tothe other of the point Where the threads cross, said member being shaped to release the threads one by one and advance the released thread.

In testimony'whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.

CHARLES LEA.

Witnesses: 4

ROBERT H. KAMMLER, v F. IRENE CHANDLER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G. 

